Dental-service stand



(N0 Modl.)

W. E. WARNER. DENTAL SERVIGE STAND-v No. 448,100. Patented'Mar. 10,1891.

F h mimm nulnlu! INVENTOB ATTOHNE rs ivrrn STATES ATENT rnrcn.

YVALTER EDWARDS WARNER, OF BROOKLYN, NE\V YORK.

DENTAL-SERVICESTAND.

SIECIFIGATION forming part of Letters Patent No. 448,100, dated March10, 1891.

Application filed March 8, 1890. Serial No. 343,122. (No model.)

To all whom it may concern:

Be it known that I, WALTER EDwARDs XVARNER, of Brooklyn, in the countyof Kings and State of New York, have invented a new and ImprovedDental-Service Stand, of which the following is a full, clear, and exactdescript-ion.

My invention is an improvement in the class of dental stands which areprovided with a spittoon attached to a service or waste pipe; and theimprovement consists in the construction and combination of parts, ashereinafter described.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is mainly a central vertical section through the device, aportion of the same being in side elevation. Fig. 2 is a partial sideelevation and section of the branch or movable waste-pipe and a verticalsection through the adjusting-plug used in connection therewith. Fig. 3is a horizontal section taken on line so a: of Fig. 2, the plug beingillustrated in a position to be slipped upon the service-pipe. V

In carrying out the invention the wastepipe 10 is carried upward somedistance above the floor and is provided at its upper end with anattached outwardly and upwardly flaring socket 11, having a ground innersurface. Into the upper end of the waste-pipe the end of the verticalmember of a curved or essentially L-shaped branch pipe 12 is introduced,the said end of the branch being reduced in external diameter at itsextremity and provided with a gasket or packing 13, of any approvedmaterial, engaging with the inner surface of the main waste-pipe 10,thereby forming a water and gas tight connection. The vertical member ofthe branch wastepipe 12 has produced upon opposite faces a series ofvertically-aligning lugs 14:, as best shown in Fig. 2.

Upon the branch pipe 12 a disk-like plug 16 .is slid, shaped with groundbeveled sides and adapted to fit in the socket 11 and form a groundswing-joint between the main wastepipe and its branch. The plug 16 isfitted with a bore of sufficient diameter to take the vertical member ofthe branch pipe 12,

and also with interior perpendicular grooves .15 to clear the lugs 14 ofthe branch pipe, and

with circumferential grooves forming ribs 17, adapted to pass betweenthe lugs of the branch pipe,'as shown in Fig. 3. The plug is placed uponthe branch 12 by causing the lugs 14 of the branch to enter theperpendicular grooves or channels 15 of the plug, and the horizontalmember of the branch wastepipe may be held at more or less elevationabove the main waste-pipe by turning the plug and causing the ribs 17 topass under and in contact with the upper or the lower branch lugs 14, asillustrated in Fig. 2.

Upon the extreme end of the horizontal member of the Waste branch pipe12 a globetrap 18 is secured, having a plug screwed in its under sideand provided with an opening in its top of suflicient diameter only toreceive the tubular shank 19 of a cup or spittoon 20, communication beinestablished between the bottom of the globe-trap and the spittoonthrough said shank.

It is obvious from the foregoing description that by the manipulation ofthe plug 16 the spittoon may be raised or lowered, as it is carried bythe waste branch pipe 12, and that as said branch may be turned freelyin the main waste-pipe the spittoon may be readily moved horizontally ina circle.

Through the lower portion of the main waste-pipe 10 the service-pipe 21is entered, which service-pipe is carried upward through the mainwaste-pipe and the vertical member of the branch 12 and out through asuitable stufiing-box 22, formed upon the latter. The upper portion ofthe service-pipe has attached thereto a faucet 23, preferably of thegooseneek pattern, and below said faucet, a glass- ICO 3% into the basinor spittoon a gentle suction is created in the branch tube 35, wherebythe latter may be employed with good results to siphon saliva from thepatients mouth. The drinking-glass is supported in the ring-like body ofthe holder.

Having thus described my invention, I claim as new and desire to secureby Letters Patent In a stand for dental use, the combination,

with the vertical Waste-pipe 10 and the detachable bored plug 16,supported therein and having internal grooves and ribs, of thelaterally-extended pipe 12, carrying a spittoon, and the spray 29,located within it, all as 15 shown and described.

WALTER EDXVARDS VARNER.

\Vitnesses:

CHAS. M. WARNER, MATTHEW M. WHITE.

